Typewriting machine



Sept. '28; 1926. I 1.601.534

' A. G. KUPETZ TYPEWRITING MACHINE Filed Oct 20, 1922 Patented Sept. 28,1926.

UNITED STATES PATENT OFFICE.

ADOLPH G. KUPETZ, OF NEW ROCHELLE, NEW YORK, ASSIGNOR T0 UNDERWOOD TYPE-WRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

TYPEWRITING IVIACHINE.

Application filed October 20, 1922. Serial No. 595,766.

This invention relates to typewriting machines, and more particularly totypewriting machines especially adapted for the writing of bills fortelephone service, in which operation it is required to type separatelythe amounts of United States taxes. The invention, however, is usefulwith or without modifications for other purposes.

It is desired not only to type the tax, items separately, but also toascertain the total of the tax items for a day or other period, Inmachines designed for this urpose, there are provided, in addition to te usual number-keys, a special key to type the number 5 and anotherspecial key to type the number 10. These two special keys areused for noother purpose, and each is operatively connected to a register, such asthe well-known Veeder cyclometer. These registers count the operationsof their respective keys, and thus enable the operator to determine thetotal of the tax items by a very simple calculation.

A feature of the invention is the ro ision of improved means forattaching t 1e register mechanism and its operating connections to astandard typewriter without drilling holes or making any otheralterations whatever in the machine frame.

In my application No. 592,682, filed October 6, 1922, now Patent No.1,559,- 889, dated November 3, 1925, I have dis closed registers for thepurpose above indicated, wherein registenoperating arms are yieldinglyoperated and are maintained at the ends of their 0 crating strokes bysprings, and are move preparatory to their operation by the springs byoperating conneotions between them and the special keys.

By this arrangement, the danger of damage to the register mechanism isobviated, lostmotion is provided between the numberkeys and the registermechanism in the last portions of the downward movements of thenumber-keys, and the number'wheels of the registers are normallymaintained in a locked condition to prevent persons from carelessly orignorantly turning the clearing shaft, and thereby altering thepositions of the wheels. The present invention aims to preserve thesedesirable features, while simplifying the connections whereby they areachieved, and adapting said connections for attachment to a standardmachine without alteration thereof.

In my application No. 592,682, previously referred to, the registeringelements are positively connected to the keylever, and a quick returnmovement of the key-lever must necessarily force the driving andcarry-over elements of the register to perform their several functionsduring an interval of time that is almost instantaneous, with the resultthat errors may develop because of defective co-operation between theregistering parts, due to the speed of operation. I11 my presentorganization it will be particularly noted that the numeral-key has nopositive connection to the register. The numeral-key overlies aregister-actuating arm in such a manner that the down-stroke of the keywill vibrate the actuator in unison to the end of the keys down-stroke,to condition the register-driving elements, and upon the release of thekey by the finger the key-lever is free to return independently of theregister-actuating arm. This enables the key-lever to be restored underits normal predetermined spring-tension, free of any extraregister-operating burden that might tend to slow down or impede thereturn movement of its associated type-bar.

It also enables the actuating spring of the register that becomes activeupon the release of the key-lever to be tensioned very lightly for thelight duty it performs, makes the restoring interval for the actuatorarm of longer duration, effectively removes any possibility of injuriousstrain to the light toothed elements of the register, and incidentallyprevents errors during the registering movements. The numeralregistering keys are never struck twice in succession, hence the slowerreturning movement of the register actuator will not delay or retard thetyping operations immediately following a registering movement. I

As in the. application referred to above, it is desirable to arrest therotation of the clearing shaft with the numberwheels standing at 9, inorder that the adding in of a unit, which necessarily folrestore all thenumber-wheels to 0. A

feature of the present invention is the provision of improved means forclearing the register, comprising a stop for positively arresting therotation oi the shaft with the wheels standing at 9.

Other features and advantages will hereinai'ter appear.

In the accompanying drawings,

Figure 1 is a front ele ation, partly in section, of the right end of atypewriting machine, with the improvements oi the present inventionapplied thereto.

Figure 2 is a side eleiation of the mechanism shown in Figure 1, withthe registerclearing handle in its normal position.

Figure 3 is a vertical section of the register on the li e 3;3 of Fifire 1.

Figure 1 is a vertical section of the register on the line a -lof F' ire1.

Figure 5 is a view snnilar to Figure 2, showing the clearing handle inthe position to which it is moved to bring the numberwheels to 9.

Figure 6 is a vertical sectional view of the register, showing theclearin handle in normal position, and a spring or returning i to normalposition.

The ypewriting machine comprises the usual keys 11, which, throughconnections to type-bars 12, cause them to strike rearwardiy against aplaten mounted upon a carriage (not shown). In addition to the usualnumber-k ys and the usual alpliabet keys, there is provided one or morespecial number-keys Only one such key and only one register 13 areshown, but it. will be readily apparent, o1 course, that. the principleof the invention is not confined to the provision of single special keyand register.

The machine frame 14, as usual, has a triangular opening 15 at the rightend of its keyboard extension. A bracket 16 and a clamping plate 17 lieon the opposite sides of the trame and are connected to each other bythree binding screws 18, which screws are received in holes in thebracket and clamping plate, so arranged that the screws 18 will lieadjacent the vertices of the triangular opening 15 in the machine frame11 and cause the bracket 16 and clamping plate 17 to clamp the framefirmly The clamping plate may be positioned by engagement of its upperedge 21 with a shoulder 22 on the machine "frame. The lower portion ofthe set screw 26 The upper end of the arm 26 has a slot 29 whichreceives a pin 30 on an operating arm 31 ot the register 13. Theregister 13 is mounted on a shelf portion 32 of the bracket 16. Theforward end of the operating arm 31 is normally maintained in anelevated position by a tension spring 33 connected to the tail 31 of theoperating arm 31 and to the bracket 16. Depression of the special key 5rocks the operating arm 31, by means of the described connections, fromthe position of Figure 2 to the position of Figure 5.

The operating arm 31 is connected to and oscillates a yoke 35, uponwhich is pivotally mounted a series of pawls 36, which pawls are pressedtoward number-wheels oi the register by a spring 38 and co-opcrate withratchet teeth 39 and intervening shallow and deep notches l0 and 11 onthe number-wheels. The hub portion 12 of the yoke is connected throughgear teeth to a segment 13, which it oscillates to carry stops llintoand out of the path of the ratchet teeth 39 on the number-wheels 37.Return locking pawls l5 preventretrograde movement of the number-wheels.1L register-clearing shaft 16 has a series of onetoothed disks 1? keyedto it, one for each number-wheel oi the register, and each number-wheelis provided with a pawl -18 and a spring 19 for pressing the pawl intoengagement with its disk d7. \Vhen the clearing shaft 16 is rotatedclockwise, as seen in liigure 3, the disk-teeth pick up the numher-wheelpawls 4-8 in the positions to which they hare been moved by theoperating pawls 36 and turn the number-wheels forward. The registermechanism described is the usual mechanism of the Veeder cyclometer.

The number-wheekoperating mechanism, however, is normally maintained inthe p0sition shown in Figure 3, that is, in-the position occupied at theconclusion of the advance or operating stroke of the registeroperatingarm 31. It will be noticed that the inimber-wheels are locked againstadvance in Figure 3 by the stops 11. In order to permit turning of thewheels by the clearing shaft 46, therefore, it is necessary for theoperating arm 31 of the register to be depr sed. which, of course, willresult in a unit being run into the number-wheels of the register uponthe restoration of the operating arm to normal position immediatelyafter the operation of the register-clearing shaft has been completed. Aregister-clearing handle 51 is rotatably mounted on theregister-clearing shaft 46 and carries a pawl which is spring-pressedinto engagement with a toothed wheel 53 fixed to the shaft, whereby aone-way driving connection is established between the handle and shaft.

justably fixed on the shaft 21 by means of a A stop 51 is mounted to liein the path of the clearing handle and positively arrest turning of thehandle 51 with the numberwheels standing at 9. A spring 55 returns thehandle independently of the clearing shaft to itsnormal position, whichis the position occupied by it in Figure 2. The stop 54 also limits thisreturn movement of the handle. The operating arm 31 of the register isthen permitted to rise, which runs in a unit and thereby turns all thewheels to 0.

The clearing shaft 46 is turned through only nine-tenths of a revolutionby the clearing handle 51. In order to bring the tooth 56 on the wheel53 again into operative relationship to the pawl, the revolution of theshaft 46 must be completed. A cam 57 having an inclined surface 58'thereon, which terminates in a deep notch 59, is keyed to the clearingshaft 16, and a detent 60 is pressed by a spring 61 against said cam 57.When the Wheels 37 are brought to the 9 position by the clearing shaft,the detent 60 presses against the inclined surface 58 of the cam 57 onthe clearing shaft. The pressure of the spring 61 is not suflicient tocause rotation of the clearing shaft 46 so long as the number-wheelsremain in driven relationship thereto, but as soon as the number-wheelshave been turned to 0 by the running in of a unit, the spring 61 iseffective through pressure of the detent 60 upon the inclined surface 58of the cam 57 to rotate the clearing shaft forward and thereby bring thetooth 56 on the Wheel 53 into position to be engaged and driven by thepawl 52 on the register-clearing handle.

Variations maybe restored to Within the scope of the invention, andportions of the im rovements may be used Without others.

Iaving thus described my invention, I claim:

1. In a typewriting machine including a full complement of alphabet andnumeral keys for typing, an extra key, a register for counting theoperations of the extra key, manually operable register-clearing meansto partially clear the register, and means released by the extra key tocomplete the register-clearing operation.

2. In a typewriting machine including a full complement of alphabet andnumeral keys for typing, an extra key, a register for counting theoperations of the extra key, manually-operable register-clearing meansrotatable between fixed stops to partially clear the register, and meansreleased by the extra key to complete the register-clearing operation.

3. In a typewriting machine including a full complement of alphabet andnumeral keys for typing, an extra key, a register for counting theoperations of the extra key, a manually-operable self-restoring crankarmrotatable between fixed stops to partially clearthe register, and meansreleased by the extra key to complete the registerclearing operation.

' 4. In a typewriting machine including a full complement of alphabetand numeral keys for typing, an extra key, a register for counting theoperations of the extra key, and register-clearing means including amanual means to initially condition the register for a final clearingmovement by means released by the extra key.

5. In a typevvriting machine, a numberkey, and a register for countingthe opera tions of the number-key, comprising number-Wheels, means foradvancing the number-wheels in counting, a clearing shaft, means mountedon the clearing shaft for turning the clearing shaft, a stop forpositively arresting the rotation of the turning means before it hasmade a complete revolution, a spring for returning the turning means toinitial position independently of the shaft, and meansfor furtherturning the shaft to complete a revolution thereof and thereby restoreit to its operative relation with its turning means.

6. In a typewriting machine, a numberkey, counting mechanism comprisingnumber-wheels, an operating arm, means controlled by the number-key foroscillating said arm to operate the counting mechanism, comprising aspring for moving the arm in its operative direction and maintaining itnormally at the end of its operating stroke, locking means controlled bythe operating arm for normally locking the counting mechanism andarranged to unlock the counting mechanism when the operating arm ismoved in an idle direction to prepare the counting mechanism forcounting, a clearing shaft for turning the number-wheels, means forturning the shaft, a stop for positively arresting the shaft-turningmeans With the number-wheels standing at 9, a spring for returning theshaftturning means to initial position, and means for further advancingthe clearing shaft upon the return of the operating arm to normalposition.

7. In a register, a set of number-Wheels, a clearing shaft for turningthe numberwheels, a toothed wheel fixed to the clearing shaft and havinga tooth thereon, a handle, a pawl carrier by the handle in engagementwith the tooth of the wheel for turning the clearing shaft, a stop forpositively arresting the handle with the number-wheels standing at 9,means for returning the handle to initial position independently of theshaft, means for advancing the number-wheels in unison to 0, and meansfor advancing the clearing shaft to turn the tooth on the toothed wheelinto operative relationship to the pawl on the handle when thenumber-Wheels are turned to O.

8. In a register, a set of number-wheels,

a clearing shaft for turning the number- Wheels, means for turning theshaft in clearing the register, a stop for positively arresting theturning of the shaft-turning means with the number-Wheels standing at 9,and means for restoring the shaft and shaftturning means to theirinitial positions in co-operative relationship to each other by rotationin opposite directions.

9. In a register. a set of number-Wheels, a clearing shaft for turningthe number- Wheels through part of a revolution. means for turning theclearing shaft, a stop for positively arresting the turning means when arevolution ha been partially completed, means for returning theshattturning means to initial position, and means for causing the11un'iher\vheels and the clearing shaft to complete a rerolution.

10. In a register, a set of number-Wheels, a clearing shaft for turningthe number- Wheels through part of a revolution, means for turning theclearing shaft, a stop for positively arresting the turning means withthe number-Wheels standing at 9, means for returning the shaft-turningmeans to initial position, a lock for normally locking the number-Wheelsagainst turning movement by the shaft, an arm mo "able to an abnormalposition to unlock the numberivheels and effective in its return tonormal position to cause a unit to be run into the number-Wheels andmeans for causing the clearing shaft to complete a revolution.

ll. In a register, a set of number-wheels, an operating arm foroperating the numberu'heels to count, normally maintained at the end ofits operating stroke and etl'ective in that position to lock theregister, said operating arm being movable to an abnormal position tounlock the register, means for turning the number-Wheels in clearing theregister, means for positively arresting the movement-0t the turningmeans with the number-wheels standing at 9, and a spring forautomatically returning the operating arm to normal position to causethe nun'il'ier-wheels to be advanced to 0.

ADOLPH o. KUPETZ.

